Vulcanizing apparatus



Aug. 28,1945'. A. RIDD I VULCANIZING APPARATUS 2 Sheets-Sheet 1 FiledDec. 20, 1943 flmbi os Ride? 7 INVENTOR.

flTTORNEY-S.

Aug. 28, .1945. Q A. RIDD 2,383,635

-- VULCANIZING APPARATUS Filed De 20, 1943 2 Sheetg-Sheet 2 IN V EN TOR.

Patented Aug. 28, 1945 VULCANIZIN This invention relates to vulcanizingdevices designed for vulcanizing and repairing pneumatic tire casings,and aims to widen the scope of use and operation of the vulcanizingdevice shown and described in my patent application, Serial No. 459,167,allowed August 28, 1943, now Patent No. 2,340,692.

An object of the invention is to provide a vulcanizing apparatus of thereversible type, which may be used in vulcanizing from a position withinthe casing, as well as from a point exteriorly thereof.

Another object of the invention is to provide a portable vulcanizingapparatus constructed in such a way that it may be used in vulcanizingsubstantially large ruptures or breaks in tire casings.

With the foregoing and other objects in View, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein described, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

Referring to the drawings:

Figure 1 is an elevational view of a vulcanizing apparatus constructedin accordance with the invention, and illustrating the apparatus aspositioned exteriorly of a tire casing wherein a substantially largecasing rupture is to be vulcanized.

Figure 2 is a sectional view taken on line 2--2 of Figure 1.

Figure 3 is a sectional view illustrating the vulcanizing apparatus asreversed, in vulcanizing a ruptured portion of a casing, from a pointexteriorly of the casing.

Figure 4 is a plan view thereof.

Referring to the drawings in detail the reference character 5 designatesthe solid core of the apparatus, which is'of a diameter slightly lessthan the interior diameter of the casing with which it is to be used.This core may be of any desired length and curved to conform to theshape of the inner surface of the casing with which it is used.

The apparatus also includes upper and lower clamping arms 6 and 1respectively, the clamping arm I being formed with spaced plates 8 whichare formed with a plurality of openings through which the pin 9 isextended, in pivotally connecting the clamping arms. The upper clampingarm is formed with an opening which is adapted to align with theopenings of the plates c ArrARATuS 151;: so nice, Louisviuakytannin-e em"et 20, inas iial 0551 9 I 8, to receive the pin 9. The clamping arm 1is formed with an upwardly extended end In, to which the theaded rod IIis pivotally connected, the rod H being supplied with a nut 12. Theupper clamping arm 6 which is curved to fit around one side of the tirecasing being repaired, is formed with an end portion I3 that is formedwith a notch to receive the threaded rod H, as shown by Figure 2 of thedrawings. After the rod II has been positioned within the notch, the nut12 may be operated to draw the free ends of the arms toward each otherto clamp the heating element and supporting pad in position against thetire casing, during the vulcanizing operation. The arm 6 is formed witha threaded opening in which the screw I4 is positioned, the screw beingprovided with a bar I5, whereby the screw may be conveniently rotated.

The screw I4 cooperates with the steel contact plate l6, which may be ofany desired length, the contact plate being curved transversely to con-.form to the curvature of a tire casing. Resting against the contactplate I6, is a pressure bag ll which embodies a casing constructed offlexible material, and filled with granular material, such as sand orthe like which will conform to the shape of the tire casing, whenpressure is brought to bear thereagainst, by said screw l4.

Cooperating with the pressure bag, is a heating element indicated by thereference character l8 which is of the electrical type, and is connectedwith a source of electricity supply, through the wire l9.

When it is desired to apply the heat in vulcanizing a ruptured portionof a tire casing, from the interior of the casing, the heating element[8 is positioned in a manner as shown by Figure 2 of the drawings, andthe pressurebag H is placed directly over the heating element, thecontact plate it resting thereon. ,Because of the curved construction ofthe contact plate I6, it will be obvious that when pressure is appliedthereto, the pressure bag will conform to the shape of the contact plateto direct even pressure throughout the entire upper and lower surfacesof the pressure bag.

When it is desired to apply the heat exteriorly of the casing, thepressure bag is reversed and positioned against the core 5 as shown byFigure 3. The heating element is now placed against the outer surface ofthe casing, directly over the pressure bag, and the screw 14 is operatedto exert pressure on the heating element forcing the heating elementinto close engagement with the tire casing which is clamped between theheating eleused three sets of clamping arms in clamping a 5substantially long contact plate and pressure bag positioned on a tirecasing. This type of vulcanizing apparatus is designed for use invulcanizing large breaksor ruptures in tire casings.

It might besfurtheii stated that the heating elements, contact platesand pressure bags may be made or various lengths, thereby adapting thevulcanizing apparatus for universal use.

use in vulcaifiiiii'gti're casings of A portable tire vulcanizingapparatus, comprising in combination, a solid core shaped to fit theinterior or a tire casing and contact with the inner surface of the tirecasing, a portable heat ing element curved to fit over the solid corebetween the core and easing under repair, a body portion embodyingpivoted arms, adapted to be fitted around the tire casing in spacedrelation therewith, a flexible pressure has adapted to fit 0 meme outersurfaee' came aman which the eore is position'ed andoeritrni ti*thecontour oi the outer surface of the tire, a curved pressure platecurved to conform to the contour of the tire 1 Due to the fact that thec1ampin'g?a'flfisma;y" casm' over the flex) e pressure P sure screw onthe body portion adapted to engage the pressure plate and directpressure to the pressure piat'e and pressure bag, clamping the tirecasing between the flexible bag; heating element an'd cere AMBROSE RIDD.

